A schematic of Nyquist sampled LOFAR TABs which illustrates the general layout assumed in all simulations. Black circles represent a 3-dB contour of a TAB at the lower frequency ν_L in the observing band. The dashed circle represents the TAB test area and stars depict positions of randomly generated sources. Two red circles represent a 3-dB contour of a TAB at the higher frequency ν_H of the observing band.